BISOPE series 68 Relationship between vibration and noise and frequency

BISOPE series 68- Relationship between vibration and noise and frequency ------------------------------------------------------------------------------ The reason why we can distinguish between people and animals is because each has a different appearance, personality, voice, and scent, and the reason we can distinguish where we are now is because we have an address. Objects and spaces are the same, so we can distinguish and express their unique or current state, but before determining the size (amplitude), we must first distinguish between ‘what’ is big and small. In particular, what is comparable to a person’s ‘voice’ is the ‘frequency’ that appears in vibration and noise. Detecting this frequency is the ability of an experienced and skilled mechanic to solve a problem just by listening to the sound, and it can be compared to the frequency detection method of a measuring instrument. Frequency and period (time), wavelength and propagation speed The movemed. If you think that high frequencies are fast and low frequencies are slow, you are right. Also, high frequencies have short wavelengths, and low frequencies have long wavelengths. This relationship can be summarized as follows. ------ #vibration measuring instrument, #frequency setting, #Fmax, #maximum frequency, #sampling frequency, #sampling rate, #FFT, #3-axis vibration sensor, #acceleration sensor, #vibration education, #building vibration, #vibration measurement, #resonance analysis, #resonance measurement, #vibration monitoring, #vibration noise consulting www.kCBM.kr, https://blog.naver.com/vs72 , https://contents.premium.naver.com/bisope/visope

BISOPE series 7 3 axis vibration sensor 3 axis vibration and accelerati...

BISOPE series 7- 3-axis vibration sensor (3-axis vibration and acceleration sensor)

------------------------------------------------------------ ------------------------------------------------

An accelerometer is the easiest transducer to measure vibration. Since the measurement direction of this transducer has already been determined, the sensor must be placed in the desired direction for measurement. It doesn't really matter if it's up or down. This is because vibration is repeated and if you want to know the relative movement, you have to use two or more sensors that measure it at the same time anyway. In this case, the concept of a phase is only additionally required. However, compared to a single axis vibration sensor, a triaxial vibration sensor literally means a sensor having the ability to measure the magnitude of vibration in three axes at the same time. It is easy to measure and you will be able to identify vibrations in all directions in a short time.

 

Advantages and disadvantages of Triaxial Accelerometer

Triaxial is described as each three-dimensional orthogonal direction in Z, X, and Y directions (H, V, A directions in the case of vibration diagnosis of rotating equipment) that are perpendicular to each other. The axes in each direction have an initial phase difference of 90 degrees from each other, and the 3-axis vibration acceleration sensor outputs the amount of vibration acceleration in each direction as voltage. Therefore, it can be said that the 3-axis vibration sensor has the following advantages.

 

First of all, it is possible to measure the vibrations in all directions at the same time. It measures the vibration in each axis direction at the same time without the need to measure it sequentially with several different sensors or at different times, so it is possible to prove the simultaneous state at the time and shorten the measurement time.

 

Second, it is possible to measure -----

 

On the other hand, the 3-axis vibration acceleration sensor is at least twice as high expensive as the combined price of all three single-axis sensors, and the average probability of failure (MTBF) of the single-axis sensor is shortened to 1 year compared to the manufacturer's recommended 3 years. do. However, in fact, the piezo-type accelerometer is more robust and less durable than expected, so it is not easy to check the broken state. Recently, like a gyro sensor, a modularized sensor capable of measuring 6-axis vibration has already appeared, and like MEMS, which basically employs 3 axes, new-technology vibration sensors with clear advantages of low frequency have already started to lead in price. The day when MEMS sensors will be used more often than piezos can be seen in the near future.

 

Key! Vibration sensor, accelerometer,, Acceleration, Accelerometer, piezoelectric effect, piezoelectric element,piezo,ICP,3 axis vibration sensor,3 axis vibration, vibration measurement ,mems, iepe, vibration education

 

All copyright  korea CBM  written by BISOPE , vs72@naver.com, 070-4388-0415,  www.kCBM.kr